Microstructural change near the martensitic transformation in a ferromagnetic shape memory alloy Ni51Fe22Ga27 studied by electron holography

Yasukazu Murakami, Daisuke Shindo, K. Oikawa, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Temperature dependence of the magnetic microstructure in a ferromagnetic shape memory alloy Ni51Fe22Ga27 has been studied by electron holography, by which the distribution of magnetic flux is clearly imaged. Although the magnetic flux is quite even in the parent phase near room temperature, it undergoes considerable modulation when the temperature approaches Ms (martensitic transformation start temperature). The magnetization distribution in the martensite appears to be inherited from that in the parent phase. The observations shed further light on the precursor phenomenon of martensitic transformations.

Original languageEnglish
Pages (from-to)6170-6172
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number25
DOIs
Publication statusPublished - 2004 Dec 20

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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